Difference between revisions of "Alopecia - Hair Loss"

Revision as of 03:57, 26 April 2006

Useful links

[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15]

Rationale

• “Medication for men plagued by hair loss has become a topic of interest in Japan since a drug company began marketing it at the end of last year".

March 5th, 2006 – source[16]

• “An increasing number of companies are apparently turning the Chinese fear of a bald spot into big bucks with some doing so well they are branching out into other countries”

February 16, 2006 – Source[17]

Introduction

Hair Basics

• Hair is a complex and delicate part of the body

• Keeping it healthy and beautiful is a challenge

Hair Basics

=== Reasons for Hair loss === Both men and women lose hair for similar reasons. Hair loss in men is often more dramatic, and follows a specific pattern of loss which has been termed “Male Pattern Baldness” (Androgenetic Alopecia).

Main reasons: -

• Hormonal effect of androgen

• Reduction of blood circulation around hair follicle

• Deactivation of hair matrix cells

Some facts from Japan: -

• Market size: ¥ 30 Billion

• Number of products: more than 100

(JICST-EPlus - Japanese Science & Technology)

Hair Basics

Goals

• Summarize IP activity over the years
• Identify major players
• Conduct patent analysis

a) Composition b) Nature c) Action

Alopecia occurs, due to

• Hormonal effect of androgens
• Reduction of blood circulation around hair follicle
• Deactivation of hair matrix cells

And then

• Analyze patents pertaining to high sebum activity

Approach

Broad search on hair loss patents.

Patent information sourced through SIP.

Patents selected randomly for analysis.

Treatment composition for causes identified and categorized as follows:

• Anti-androgen
• Minoxidil
• Double action (Anti-androgen + Mindoxidil)
• Hair matrix cells activator
• Sebum production inhibitor

IP activity over years

The graph indicates:

• Number of patents filed every 5 years (except for first 7 years).
• First solution proposed in 1973.
• Filing trend indicates steep rise in activity recently.

IP Activity

Major Players

• Assignees with more than 20 patents to their credit

IP Activity

• Assignees with less than 20 patents to their credit

IP Activity

• Active Assignees

Assignees currently active with more than 5 patents to their credit during 2000-2005, among them following are the leaders of 2005-

WARNER with 9 patents,

BRISTOL with 6 and

ABBOTT with 5.

Active Assignees

Anti-androgens

• Anti-androgen is a substance that inhibits the biological effects of androgenic hormones
• 5-alpha reductase + Testosterone = Dihydrotestosterone (DHT)
• DHT attaches to the Androgen Receptor.
• DHT causes increase in hair loss and gradual miniaturization of the follicle, which eventually dies causing hair loss

Anti-androgen

Anti-androgen